pederb: fixed bug reported by Larry D'Cunha. (SoCallbackAction now uses SoType::getAllDerivedFrom() when setting callbacks.)
pederb: fixed bug reported by Larry D'Cunha. (SoCallbackAction now
uses SoType::getAllDerivedFrom() when setting callbacks.)

Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D,Alexpux/Coin3D